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发明名称
Improvements in and relating to gully covers for road drainage
摘要
申请公布号
GB404023(A)
申请公布日期
1934.01.08
申请号
GB19320019268
申请日期
1932.07.07
申请人
BROAD & COMPANY LIMITED;DONALD GEORGE HARRIS
发明人
分类号
E03F5/046
主分类号
E03F5/046
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代理人
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